Advanced Materials Technologies,
Год журнала:
2024,
Номер
9(10)
Опубликована: Март 19, 2024
Abstract
Disc
and
cylinder‐based
triboelectric
nanogenerators
(TENGs)
have
great
potential
for
harvesting
wind
energy.
However,
a
significant
challenge
faced
by
these
TENGs
is
the
wear
issues
arising
from
required
close
contact
between
tribo‐materials,
especially
at
high
frequencies.
In
response
to
this
challenge,
gear‐slider
TENG
(GS‐TENG)
designed
transition
continuous
close‐contact
friction
mode
intermittent
contact.
Working
in
unison
with
central
gear
two
sliders,
four
units
housed
within
GS‐TENG
yield
electrical
output
through
periodic
separation.
During
durability
test
of
845
000
cycles,
short‐circuit
current
only
experiences
slight
decrease,
going
25.38
24.03
µA,
retaining
94.68%
its
initial
value.
Operating
matched
impedance
6
MΩ,
M1
achieves
peak
power
density
386
mW
m
−2
,
exceeding
some
previously
proposed
solutions
harvesting.
When
integrated
into
speed
sensing
system,
has
wide
range
(13.1
28
s
−1
)
maximum
error
3.39%.
This
work
demonstrates
rotation‐to‐translation
strategy
that
lays
foundation
long‐term,
high‐frequency
energy
development
self‐powered
system.
Applied Sciences,
Год журнала:
2024,
Номер
14(6), С. 2539 - 2539
Опубликована: Март 18, 2024
Downhole
drilling
tool
vibration
measurement
is
crucial
for
exploration
safety,
so
real-time
monitoring
of
data
required.
In
this
research,
a
honeycomb
triboelectric
nanogenerator
(H-TENG)
capable
adapting
to
various
downhole
environments
proposed.
It
can
measure
the
frequency
equipment’s
vibrations
and
transfer
mechanical
energy
electrical
use
in
powering
other
low
power
meters.
order
preliminarily
verify
possibility
sensors
used
tools,
we
built
simulated
platform
test
sensing
performance
collection
H-TENG.
According
testing
results,
range
amplitude
are
0
11
Hz
5
25
mm,
respectively,
corresponding
errors
less
than
5%
6%,
respectively.
For
vibrational
harvesting,
when
four
wired
series
with
107
resistance,
maximum
approximately
1.57
μW.
Compared
typical
methods
measuring
vibration,
does
not
need
an
external
source,
it
has
greater
reliability
output
power,
vary
its
shape
adapt
complicated
environment.
addition,
H-TENG
be
combined
freely
according
diameter
drill
string,
even
if
one
sensor
unit
damaged,
units
still
normally.
Advanced Materials Technologies,
Год журнала:
2024,
Номер
9(10)
Опубликована: Март 19, 2024
Abstract
Disc
and
cylinder‐based
triboelectric
nanogenerators
(TENGs)
have
great
potential
for
harvesting
wind
energy.
However,
a
significant
challenge
faced
by
these
TENGs
is
the
wear
issues
arising
from
required
close
contact
between
tribo‐materials,
especially
at
high
frequencies.
In
response
to
this
challenge,
gear‐slider
TENG
(GS‐TENG)
designed
transition
continuous
close‐contact
friction
mode
intermittent
contact.
Working
in
unison
with
central
gear
two
sliders,
four
units
housed
within
GS‐TENG
yield
electrical
output
through
periodic
separation.
During
durability
test
of
845
000
cycles,
short‐circuit
current
only
experiences
slight
decrease,
going
25.38
24.03
µA,
retaining
94.68%
its
initial
value.
Operating
matched
impedance
6
MΩ,
M1
achieves
peak
power
density
386
mW
m
−2
,
exceeding
some
previously
proposed
solutions
harvesting.
When
integrated
into
speed
sensing
system,
has
wide
range
(13.1
28
s
−1
)
maximum
error
3.39%.
This
work
demonstrates
rotation‐to‐translation
strategy
that
lays
foundation
long‐term,
high‐frequency
energy
development
self‐powered
system.
